Healthy Weight Calculator

Calculate your child's BMI-for-age percentile to determine if they are at a healthy weight based on WHO growth standards. This calculator is for children and teens aged 2 to 18 years.

BMI-for-age percentile

0
Healthy weight
BMI 0.0
Age 10 years 0 months
Height 140 cm
Weight 35 kg

About the Healthy Weight Calculator

The Healthy Weight Calculator uses Body Mass Index (BMI) adjusted for age and gender to assess whether a child or teen is at a healthy weight. BMI-for-age is the most widely used screening tool for identifying potential weight problems in children aged 2 to 18 years.

How BMI-for-age is Calculated

BMI-for-age is calculated using the following steps:

  1. Calculate BMI using the formula: weight (kg) / [height (m)]²
  2. Compare the BMI value to growth charts for children of the same age and gender
  3. Determine the percentile ranking based on WHO growth standards

BMI-for-age Categories

Children and teens fall into one of four categories based on their BMI-for-age percentile:

Why BMI-for-age Matters

BMI-for-age is an important screening tool because:

Note: This calculator provides an estimate based on WHO growth standards. For a complete assessment of your child's growth and development, please consult with a healthcare professional.